US 11,986,258 B2
Depth limiter for robotically assisted arthroplasty
Charles M. Lawrie, St. Louis, MO (US)
Assigned to Zimmer, Inc., Warsaw, IN (US)
Filed by Zimmer, Inc., Warsaw, IN (US)
Filed on Oct. 1, 2021, as Appl. No. 17/492,050.
Claims priority of provisional application 63/088,713, filed on Oct. 7, 2020.
Prior Publication US 2022/0104901 A1, Apr. 7, 2022
Int. Cl. A61B 34/30 (2016.01); A61B 17/16 (2006.01); A61B 90/00 (2016.01)
CPC A61B 34/30 (2016.02) [A61B 17/1633 (2013.01); A61B 90/03 (2016.02); A61B 2090/034 (2016.02); A61B 2090/062 (2016.02)] 17 Claims
OG exemplary drawing
 
1. A robotically controlled depth limiter for a reamer, the depth limiter comprising:
a cylindrical housing configured to encompass a portion of a driveshaft of a reamer, the cylindrical housing defining a bore extending therethrough; and
a depth stop engaging the cylindrical housing within the bore and defining an opening configured to receive the driveshaft of the reamer therethrough, the depth stop configured to receive a signal via processing circuitry of a robotic arm, to operate the depth stop to engage the driveshaft to limit distal translation of the driveshaft relative to the cylindrical housing and to control a cutting depth of the reamer.